Onion and Cheddar Burgers Recipe

Ingredients

• 2 pounds ground beef
• 1 cup chopped onion
• 1 egg, beaten
• 0.5 cup ketchup
• 1 teaspoon salt
• 0.5 teaspoon pepper
• 0.25 teaspoon dried oregano
• 1 tablespoon Worcestershire sauce
• 0.75 cup shredded Cheddar cheese
• 6 hamburger buns